This is a routine I recently came up with based on social dilemma's. I've field tested it and the results are pretty good, given the fact that whatever answer the woman gives you is good.
I decided to try and come up with these original routines after my former girlfriend told me how attracted she was to me when I asked her what I like to call the "3 Qualities Routine". (see explanation at the bottom of the page).
It's not going to help you get in the sack in a minute, but it will definitely catch the girls eye and get her interested.
So basically you ask the girl the following question:
"Imagine if you and your co-workers/office (lets say 38 other people), had decided to team up and buy some lottery tickets in the hope to win the big $30 million (note that you can change the gains, I just thought it was a realistic number) dollar lottery.
They trust you, and you kept the tickets. The next day you discover that you've won the lottery, however your co-workers (emphasize on that word, make a clear distinction that these are not close friends) don't know it yet.
You have a choice:
1/ You tell your co-workers and split the gains (about $789,473 each).
2/ You don't tell them, get $30,000,000 and a 1 month head start to run away, knowing that they will know you stole there money and might come after you to kill/steal/capture/whatever. So a little bit living the life as an outlaw.
Delivery here is extremely important. Emphasizing on the huge difference between 30 mil and $700,000, and making it clear that these are office co-workers, not good friends.
This will obviously get her thinking, and whatever answer she gives you, you can neg/make fun of.
ex:
answer 1 (Oh you are so not adventurous! then work on that)
answer 2 (your a bad girl! no loyalty, etc etc)
Both can be used extremely well, but be ready for a comeback question asking you what would you do. I always keep the mystery floating around and will answer with something like: "That's just something your going to have to find out

", and then i'd get up and just leave to some other group, leaving her stunned about what fresh breath of air just passed by. Then comeback later, and give her my answer, or change the subject.
There you go!
CW
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N.B: I read this routine somewhere on here under a different name but can't find it, by any means do I claim I invented it, i'm just re-stating it and added some tweaks that I field tested.
My ex-girlfriend told me at the time we where dating told me that when I asked her her 3 qualities she was just blown away and that had did it for her. So I guess it works.
3 Qualities Routine: Basically I tell the girl that "There are many many beautiful woman in this City. When you think of it, there are about X number of girls (give a number) in this place tonight alone. 30% of them could qualify as good looking. Now, don't get all excited, I didn't say you where hot *smile*, but your decent *smile*.
So the question is, how do all these good looking but similar woman differentiate themselves from one another? Great personality.
So what are 3 of your qualities that come up right off the bat.
(At this point the woman should be caught off guard, everyone - especially insecure hotties - have a hard time giving themselves qualities that aren't physical).
After that its a home-run and you just neg the ish out of everything she says.
Watch out though, be prepared with 3 interesting qualities of yours if she returns the question.